EP1279204B1 - Parabolic antenna and method for making same - Google Patents
Parabolic antenna and method for making same Download PDFInfo
- Publication number
- EP1279204B1 EP1279204B1 EP01929735A EP01929735A EP1279204B1 EP 1279204 B1 EP1279204 B1 EP 1279204B1 EP 01929735 A EP01929735 A EP 01929735A EP 01929735 A EP01929735 A EP 01929735A EP 1279204 B1 EP1279204 B1 EP 1279204B1
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- EP
- European Patent Office
- Prior art keywords
- antenna
- fact
- sheet
- reflector
- openings
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/14—Reflecting surfaces; Equivalent structures
- H01Q15/16—Reflecting surfaces; Equivalent structures curved in two dimensions, e.g. paraboloidal
- H01Q15/168—Mesh reflectors mounted on a non-collapsible frame
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/14—Reflecting surfaces; Equivalent structures
- H01Q15/141—Apparatus or processes specially adapted for manufacturing reflecting surfaces
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/14—Reflecting surfaces; Equivalent structures
- H01Q15/141—Apparatus or processes specially adapted for manufacturing reflecting surfaces
- H01Q15/142—Apparatus or processes specially adapted for manufacturing reflecting surfaces using insulating material for supporting the reflecting surface
Definitions
- the invention relates to an antenna of the type comprising a reflector of an electrically conductive material embedded in a body made of plastic.
- the object of the present invention therefore relates to an antenna forming part of a radio installation for the emission or reception designed to radiate or receive waves radio in space.
- the present invention relates to an antenna for decimetric wavelengths up to wavelengths millimeter.
- This type of antenna consists of a powered element, called primary source, and a reflector which may have a planar shape, parabolic or dihedral. These antennas are most often in the form of cap of a sphere or a paraboloid of revolution but they can also present any other shape ensuring focus.
- a mesh formed of intertwined wires and intertwined to form meshes constitutes a deformable element which, when it is shaped (cutting and stamping) to form a reflector, has non-homogeneous mesh dimensions entraining, for the final product, poor technical characteristics of reception due to faults in this reflector.
- the present invention aims to overcome these drawbacks.
- the present invention aims to provide an antenna having good technical reception characteristics, forming a structure resistant to mechanical and atmospheric constraints, this antenna being capable of being obtained by a method of simple manufacturing, reproducible and guaranteeing a good product quality.
- the invention achieves this object by an antenna in which the reflector is made of a sheet of expanded material defining quadrilateral openings whose diagonals are perpendicular between them.
- the present invention also relates to the method of manufacture of such an antenna.
- the conductive material of electricity belongs to the group comprising metals, their oxides and their alloys; this electrically conductive material being, so preferential, aluminum or steel.
- the sheet of expanded material used to make the reflector is preferably a sheet of electrically conductive material which has a thickness between 0.25 and 0.40 mm.
- the sheet of expanded material is made from a sheet pierced with small slots, staggered, this sheet being stretched in a perpendicular direction at these slots, so as to form a type of mesh.
- the slots are arranged strictly staggered, so that the openings made during stretching have a diamond shape.
- plastic material constituting the body of the antenna may use any thermoplastic plastic material likely to be injected, in particular a plastic material belonging to the group including polyethylene, polypropylene, polyolefins, ABS (terpolymer of acrylonitrile, butadiene and styrene), polycarbonates and poly (methyl methacrylate).
- a plastic material belonging to the group including polyethylene, polypropylene, polyolefins, ABS (terpolymer of acrylonitrile, butadiene and styrene), polycarbonates and poly (methyl methacrylate).
- the plastic forming the body of the antenna is transparent.
- polymethacrylate can be used methyl, in particular "Plexiglass” (registered trademark).
- an antenna 10 having a paraboloid cap shape, therefore shaped circular from its front and back faces.
- This antenna 10 is provided, at its periphery, an edge 11 forming a rim turned towards the rear of the antenna as can be seen more clearly on the Figures 2 and 3.
- the body 14 of the antenna 10 forms a paraboloid cap of 15 which is surrounded by the edge 11 (see figure 3).
- This reflector 12 is therefore formed of a kind of grid, the strips 15, of width l, come from an initially full sheet which has been stretched in the direction of the small diagonal after cutting slots in the direction of the large diagonal D.
- This reflector 12 is embedded in a body 14 made of material plastic which protects the reflector 12, in particular from corrosion.
- the body 14 in a single piece which includes a sleeve 16.
- This sleeve 16 has an opening which is intended to receive the support arm of the powered element which is capable of being connected directly to the transmitter or receiver associated with the antenna.
- this sleeve 16 is of preferably located at the periphery of the antenna 10, at the edge 11.
- the aforementioned powered element comprises an arm which will be inserted in the sleeve 16, the latter having an orientation which, combined at arm length, will determine the focal length of the antenna.
- the sleeve 16 has a shape external in the shape of a trunk of a pyramid, its opening being shaped cylindrical, of rectangular section.
- the aforementioned arm can be fixed using a tip having a shape complementary to that of the sleeve 16.
- FIGS. 5 and 6 is illustrated an alternative embodiment of the sleeve bearing a reference numeral 16 ', the shape of this sleeve 16 'being that of a pyramid trunk with a rectangular base.
- the sleeve 16 or 16 'intended to receive the support arm of the element supplied and which formed an external radial extension of the edge 11 of the body 14 of the antenna 10 of injected plastic is now replaced by a 16 "section opening substantially square located in the peripheral part of the cap dish 15.
- the concave side of dish 15 has three ribs diametral 20 forming between them an angle at the center of about 60 °. These ribs 20 come from the shape of the mold and are intended to provide mechanical reinforcement of the antenna 10.
- the antenna 10 is provided with several zones 18 (four on the figures) arranged substantially in the central part of the antenna and having a deformation set back with respect to the concave face of the antenna. These zones 18 are pierced in the middle by an orifice and are intended for fixing the antenna 10 on a support.
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Aerials With Secondary Devices (AREA)
- Details Of Aerials (AREA)
Abstract
Description
L'invention concerne une antenne du type comprenant un réflecteur en un matériau conducteur de l'électricité enrobé dans un corps en matière plastique.The invention relates to an antenna of the type comprising a reflector of an electrically conductive material embedded in a body made of plastic.
L'objet de la présente invention concerne donc une antenne formant une partie d'une installation radioélectrique d'émission ou de réception conçue en vue de rayonner ou de capter des ondes radioélectriques dans l'espace.The object of the present invention therefore relates to an antenna forming part of a radio installation for the emission or reception designed to radiate or receive waves radio in space.
Plus précisément, la présente invention concerne une antenne pour les longueurs d'ondes décimétriques jusqu'aux longueurs d'ondes millimétriques. Ce type d'antenne est constitué d'un élément alimenté, dit source primaire, et d'un réflecteur pouvant présenter une forme plan, parabolique ou en dièdre. Ces antennes sont le plus souvent en forme de calotte d'une sphère ou d'un paraboloïde de révolution mais elles peuvent présenter aussi toute autre forme assurant une focalisation.More specifically, the present invention relates to an antenna for decimetric wavelengths up to wavelengths millimeter. This type of antenna consists of a powered element, called primary source, and a reflector which may have a planar shape, parabolic or dihedral. These antennas are most often in the form of cap of a sphere or a paraboloid of revolution but they can also present any other shape ensuring focus.
On connaít déjà, notamment du document EP 0 595 418, une antenne constituée d'un grillage réalisé en un matériau conducteur de l'électricité, ce grillage étant enrobé de matière plastique.We already know, in particular from document EP 0 595 418, a antenna consisting of a mesh made of a conductive material electricity, this mesh being coated with plastic.
Toutefois, ce type d'antenne présente de nombreux inconvénients, que ce soit en terme de procédé de fabrication ou en terme de performance. En effet, un grillage formé de fils entrecroisés et entrelacés pour former des mailles constitue un élément déformable qui, lorsqu'il est mis en forme (découpe et emboutissage) pour former un réflecteur, présente des dimensions de maille non homogènes entraínant, pour le produit final, de mauvaises caractéristiques techniques de réception du fait des défauts se trouvant dans ce réflecteur.However, this type of antenna has many disadvantages, either in terms of manufacturing process or in terms performance. Indeed, a mesh formed of intertwined wires and intertwined to form meshes constitutes a deformable element which, when it is shaped (cutting and stamping) to form a reflector, has non-homogeneous mesh dimensions entraining, for the final product, poor technical characteristics of reception due to faults in this reflector.
La présente invention vise à palier ces inconvénients.The present invention aims to overcome these drawbacks.
A cet effet, la présente invention vise à foumir une antenne présentant de bonnes caractéristiques techniques de réception, formant une structure résistante aux contraintes mécaniques et atmosphériques, cette antenne étant susceptible d'être obtenue par un procédé de fabrication simple, reproductible et garantissant un produit de bonne qualité.To this end, the present invention aims to provide an antenna having good technical reception characteristics, forming a structure resistant to mechanical and atmospheric constraints, this antenna being capable of being obtained by a method of simple manufacturing, reproducible and guaranteeing a good product quality.
L'invention atteint ce but par une antenne dans laquelle le réflecteur est réalisé dans une feuille de matériau déployé définissant des ouvertures en forme de quadrilatère dont les diagonales sont perpendiculaires entre elles.The invention achieves this object by an antenna in which the reflector is made of a sheet of expanded material defining quadrilateral openings whose diagonals are perpendicular between them.
On constate en effet que l'utilisation d'une feuille de matériau déployé permet l'obtention d'un réflecteur présentant des caractéristiques de maille constante qui garantissent de bonnes caractéristiques techniques de réception et une reproductibilité de fabrication.It can be seen that the use of a sheet of material deployed allows obtaining a reflector having characteristics of constant mesh which guarantee good characteristics acceptance techniques and manufacturing reproducibility.
La présente invention concerne également le procédé de fabrication d'une telle antenne.The present invention also relates to the method of manufacture of such an antenna.
Il est de préférence prévu que le matériau conducteur de l'électricité appartient au groupe comprenant les métaux, leurs oxydes et leurs alliages ; ce matériau conducteur d'électricité étant, de manière préférentielle, de l'aluminium ou de l'acier.It is preferably provided that the conductive material of electricity belongs to the group comprising metals, their oxides and their alloys; this electrically conductive material being, so preferential, aluminum or steel.
La feuille de matériau déployé utilisée pour réaliser le réflecteur est de préférence une feuille en matériau conducteur de l'électricité qui présente une épaisseur située entre 0,25 et 0,40 mm.The sheet of expanded material used to make the reflector is preferably a sheet of electrically conductive material which has a thickness between 0.25 and 0.40 mm.
De manière classique, la feuille de matériau déployé est réalisée à partir d'une feuille percée de fentes de petite longueur, disposées en quinconce, cette feuille étant étirée en direction perpendiculaire à ces fentes, de façon à former un type de grillage.Conventionally, the sheet of expanded material is made from a sheet pierced with small slots, staggered, this sheet being stretched in a perpendicular direction at these slots, so as to form a type of mesh.
De manière avantageuse, les fentes sont disposées strictement en quinconce, de sorte que les ouvertures réalisées lors de l'étirement présentent une forme de losange.Advantageously, the slots are arranged strictly staggered, so that the openings made during stretching have a diamond shape.
La longueur et la disposition des fentes réalisées dans la feuille de matériau conducteur de l'électricité, destinée à former la feuille de matériau déployé, présentent avantageusement les caractéristiques suivantes :
- la grande diagonale des ouvertures présente une longueur comprise entre 4,5 et 6 mm,
- la petite diagonale des ouvertures présente une longueur comprise entre 3 et 4 mm, et
- entre les ouvertures subsiste entre 0,25 et 0,5 mm de matière constituant les lanières du grillage destiné à former le réflecteur.
- the large diagonal of the openings has a length of between 4.5 and 6 mm,
- the small diagonal of the openings has a length of between 3 and 4 mm, and
- between the openings remains between 0.25 and 0.5 mm of material constituting the strips of the mesh intended to form the reflector.
L'obtention des meilleurs résultats de réception de l'antenne selon la présente invention a été constatée, pour une antenne présentant un diamètre de 85 cm, avec un réflecteur dont les ouvertures en forme de losange comportent une grande diagonale présentant une longueur de 6 mm, une petite diagonale présentant une longueur de 3,4 mm et 0,3 mm de matière subsistant entre les ouvertures (largeur des lanières précitées).Obtaining the best antenna reception results according to the present invention has been found, for an antenna having a diameter of 85 cm, with a reflector whose openings in the form of rhombus have a large diagonal having a length of 6 mm, a small diagonal having a length of 3.4 mm and 0.3 mm of material remaining between the openings (width of the strips above).
Comme matière plastique constituant le corps de l'antenne, on pourra utiliser toute matière plastique thermoplastique susceptible d'être injectée, notamment une matière plastique appartenant au groupe comprenant le polyéthylène, le polypropylène, les polyoléfines, les ABS (terpolymère d'acronitrile, de butadiène et de styrène), les polycarbonates et le poly(méthacrylate de méthyle).As the plastic material constituting the body of the antenna, may use any thermoplastic plastic material likely to be injected, in particular a plastic material belonging to the group including polyethylene, polypropylene, polyolefins, ABS (terpolymer of acrylonitrile, butadiene and styrene), polycarbonates and poly (methyl methacrylate).
L'utilisation d'une feuille de matériau déployé pour la réalisation du réflecteur de l'antenne apporte un autre avantage constitué par le fait que cette structure de réflecteur, formant un grillage très fin, constitue une structure quasi-invisible dès qu'un observateur est situé à une certaine distance de l'antenne.The use of a sheet of deployed material for the realization of the antenna reflector brings another advantage constituted by the fact that this reflector structure, forming a very fine grid, constitutes a almost invisible structure as soon as an observer is located at a certain distance from the antenna.
Afin de tirer partie de cet avantage, il est avantageusement prévu que la matière plastique formant le corps de l'antenne soit transparente. Notamment, on peut utiliser du polyméthacrylate de méthyle, en particulier du "Plexiglass" (marque déposée).In order to take advantage of this advantage, it is advantageously provided that the plastic forming the body of the antenna is transparent. In particular, polymethacrylate can be used methyl, in particular "Plexiglass" (registered trademark).
De cette manière, il est possible d'obtenir une antenne que l'on peut qualifier de transparente et qui, de ce fait, s'intègre de manière très naturelle dans l'environnement.In this way, it is possible to obtain an antenna which can be can be described as transparent and which, as a result, integrates in a very natural in the environment.
Le procédé de fabrication du type précité comporte les étapes
suivantes :
L'invention sera mieux comprise, les caractéristiques secondaires et leurs avantages apparaítront au cours de la description d'un mode de réalisation donnée ci-dessous à titre d'exemple.The invention will be better understood, the characteristics side effects and their advantages will become apparent during the description of an embodiment given below by way of example.
Il est entendu que la description et les dessins ne sont donnés qu'à titre indicatif et non limitatif.It is understood that the description and the drawings are only given for information only and not limitative.
Il sera fait référence aux dessins annexés, dans lesquels :
- la figure 1 est une vue en élévation de face de l'antenne selon la présente invention,
- la figure 2 est une vue en coupe suivant la direction II-II de la figure 1,
- la figure 3 est une vue en coupe de l'antenne, objet de la présente invention, selon la direction III-III de la figure 1,
- la figure 4 est un agrandissement du détail IV de la figure 1, et
- les figures 5 et 6 représentent un détail de l'antenne suivant une variante de réalisation.
- la figure 7 est une vue similaire à celle de la figure 1 pour une autre alternative de réalisation de l'antenne selon la présente invention, et
- la figure 8 est une vue partielle agrandie de l'antenne selon la direction VIII-VIII de la figure 7.
- FIG. 1 is a front elevation view of the antenna according to the present invention,
- FIG. 2 is a sectional view in the direction II-II of FIG. 1,
- FIG. 3 is a sectional view of the antenna, object of the present invention, in the direction III-III of FIG. 1,
- FIG. 4 is an enlargement of detail IV of FIG. 1, and
- Figures 5 and 6 show a detail of the antenna according to an alternative embodiment.
- FIG. 7 is a view similar to that of FIG. 1 for another alternative embodiment of the antenna according to the present invention, and
- FIG. 8 is a partial enlarged view of the antenna in the direction VIII-VIII of FIG. 7.
Sur la figure 1, est visible une antenne 10 selon la présente
invention présentant une forme de calotte de paraboloïde, donc de forme
circulaire depuis ses faces avant et arrière. Cette antenne 10 est munie, à
sa périphérie, d'un bord 11 formant un rebord tourné en direction de
l'arrière de l'antenne comme on peut le voir de manière plus claire sur les
figures 2 et 3. Dans sa majeure partie, le corps 14 de l'antenne 10 forme
une calotte de paraboloïde de 15 qui est entourée par le bord 11 (voir
figure 3).In Figure 1, is visible an
Si l'on se reporte à la figure 4 représentant de manière très
agrandie la structure de l'antenne, on retrouve le réflecteur 12 appartenant
à toute la surface de l'antenne 11 et issu d'une feuille de matériau, de
préférence de métal déployé dont les ouvertures 13 en forme de losange
présentent une grande diagonale D, une petite diagonale d.If we refer to Figure 4 representing very
enlarged the structure of the antenna, we find the reflector 12 belonging
to the entire surface of the
Ce réflecteur 12 est donc formé d'une sorte de grillage dont les
lanières 15, de largeur l, sont issues d'une feuille initialement pleine qui a
été étirée suivant la direction de la petite diagonale d après découpe de
fentes selon la direction de la grande diagonale D. This reflector 12 is therefore formed of a kind of grid, the
Ce réflecteur 12 est noyé dans un corps 14 réalisé en matière
plastique qui protège le réflecteur 12, notamment de la corrosion.This reflector 12 is embedded in a
Selon une avantageuse disposition, lors du procédé de
fabrication de l'antenne 10, et plus précisément lors de l'injection de la
matière plastique constituant le corps 14 autour du réflecteur 12, on
réalise le corps 14 en une seule pièce qui comporte un manchon 16.According to an advantageous arrangement, during the process of
manufacture of the
Ce manchon 16 comporte une ouverture qui est destinée à
recevoir le bras de support de l'élément alimenté qui est apte à être relié
directement à l'émetteur ou au récepteur associé à l'antenne.This
Comme on peut le voir sur la figure 1, ce manchon 16 est de
préférence situé à la périphérie de l'antenne 10, au niveau du bord 11.As can be seen in FIG. 1, this
L'élément alimenté précité comporte un bras qui va être inséré
dans le manchon 16, ce dernier présentant une orientation qui, combinée
à la longueur du bras, va déterminer la distance focale de l'antenne.The aforementioned powered element comprises an arm which will be inserted
in the
Dans le cas de la figure 1, le manchon 16 présente une forme
externe en forme de tronc de pyramide, son ouverture étant de forme
cylindrique, de section rectangulaire.In the case of FIG. 1, the
La fixation du bras précité pourra s'effectuer à l'aide d'un
embout présentant une forme complémentaire de celle du manchon 16.The aforementioned arm can be fixed using a
tip having a shape complementary to that of the
Sur les figures 5 et 6 est illustrée une variante de réalisation du manchon portant une référence numérique 16', la forme de ce manchon 16' étant celle d'un tronc de pyramide à base rectangulaire.In FIGS. 5 and 6 is illustrated an alternative embodiment of the sleeve bearing a reference numeral 16 ', the shape of this sleeve 16 'being that of a pyramid trunk with a rectangular base.
Dans le cas de l'alternative de réalisation illustrée sur les
figures 7 et 8, le manchon 16 ou 16' destiné à recevoir le bras de support
de l'élément alimenté et qui formait une prolongation radiale extérieure du
bord 11 du corps 14 de l'antenne 10 en matière plastique injectée (voir
figure 3) est maintenant remplacé par une ouverture 16" de section
sensiblement carrée située dans la partie périphérique de la calotte de
paraboloïde 15. En outre, on prévoit dans ce cas que, de préférence, la
face concave de la calotte de paraboloïde 15 porte trois nervures
diamétrales 20 formant entre elles un angle au centre de 60° environ. Ces
nervures 20 sont issues de la forme du moule et ont pour but d'apporter
un renforcement mécanique de l'antenne 10.In the case of the alternative embodiment illustrated on the
Figures 7 and 8, the
Comme on peut le voir sur les figures 1 à 3 et 7, de façon
avantageuse, l'antenne 10 est munie de plusieurs zones 18 (quatre sur
les figures) disposées sensiblement dans la partie centrale de l'antenne et
présentant une déformation en retrait par rapport à la face concave de
l'antenne. Ces zones 18 sont percées en leur milieu par un orifice et sont
destinées à la fixation de l'antenne 10 sur un support.As can be seen in Figures 1 to 3 and 7, so
advantageous, the
On comprend que ces déformations en forme de cuvette sont facilement réalisables au moment de l'emboutissage de la feuille de matériau déployé.It is understood that these deformations in the form of a bowl are easily achievable when stamping the sheet expanded material.
Claims (15)
- Antenna (10) comprising a reflector (12) made of an electrically conductive material embedded in a body (14) made of plastics material, characterised by the fact that the said reflector is made from a sheet of expanded material defining openings (13) in the shape of a quadrilateral the diagonals of which are mutually perpendicular.
- Antenna (10) as described in claim 1, characterised by the fact that the said electrically conductive material belongs to the group comprising the metals, their oxides and their alloys.
- Antenna (10) as described in claim 1, characterised by the fact that the said electrically conductive material is aluminium or steel.
- Antenna (10) as described in any one of the preceding claims, characterised by the fact that the said sheet of electrically conductive material has a thickness of between 0.25 and 0.40 millimetre.
- Antenna (10) as described in any one of the preceding claims, characterised by the fact that the said openings (13) are diamond-shaped.
- Antenna (10) as described in claim 5, characterised by the fact that the said openings (13) include a large diagonal having a length (D) of between 4.5 and 6 millimetres.
- Antenna (10) as described in claim 5, characterised by the fact that the said openings (13) include a small diagonal having a length (d) of between 3 and 4 millimetres.
- Antenna (10) as described in any one of the preceding claims, characterised by the fact that between 0.25 and 0.5 millimetre of material remains between the said openings.
- Antenna (10) as described in claim 5, characterised by the fact that the said openings include a large diagonal having a length (D) of 6 millimetres and a small diagonal having a length (d) of 3.4 millimetres, and by the fact that 0.3 millimetre of material remains between the said openings.
- Antenna (10) as described in any one of the preceding claims, characterised by the fact that the said plastics material is thermoplastic and able to be injected.
- Antenna (10) as described in claim 10, characterised by the fact that the said plastics material belongs to the group comprising polyethylene, polypropylene, polyolefins, ABS (acronitrile terpolymer, butadiene and styrene), polycarbonates and methyl polymethacrylate.
- Antenna (10) as described in claim 10, characterised by the fact that the said plastics material is transparent.
- Antenna (10) as described in claim 12, characterised by the fact that the said plastics material is methyl polymethacrylate, in particular "Plexiglas" (registered trade mark) .
- Antenna (10) as described in any one of the preceding claims, characterised by the fact that the said body (14) is formed in one piece provided with an opening (16; 16'; 16") intended to receive the support arm of the live element, which is connected directly to the transmitter or to the receiver associated with the antenna (10).
- Process for manufacture of an antenna (10), characterised by the fact that it includes the following steps:a) a sheet of metal is provided,b) slots are formed in staggered rows in the said sheet of metal and the said sheet is stretched to create an expanded sheet of metal,c) the said expanded sheet of metal is stamped in the press in order to cut it out and give it the required volume so as to obtain a reflector (12),d) the said reflector is placed in the injection mould,e) thermoplastic material is injected into the said mould so as to embed the said reflector in a body (14), andf) the said antenna (10) is removed from the mould.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0005537 | 2000-04-28 | ||
| FR0005537A FR2808382B1 (en) | 2000-04-28 | 2000-04-28 | PARABOLIC ANTENNA AND MANUFACTURING METHOD THEREOF |
| PCT/FR2001/001302 WO2001084671A1 (en) | 2000-04-28 | 2001-04-27 | Parabolic antenna and method for making same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1279204A1 EP1279204A1 (en) | 2003-01-29 |
| EP1279204B1 true EP1279204B1 (en) | 2004-07-14 |
Family
ID=8849763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP01929735A Expired - Lifetime EP1279204B1 (en) | 2000-04-28 | 2001-04-27 | Parabolic antenna and method for making same |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP1279204B1 (en) |
| AT (1) | ATE271264T1 (en) |
| AU (1) | AU2001256430A1 (en) |
| DE (1) | DE60104302T2 (en) |
| ES (1) | ES2223835T3 (en) |
| FR (1) | FR2808382B1 (en) |
| PT (1) | PT1279204E (en) |
| WO (1) | WO2001084671A1 (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2447565C3 (en) * | 1974-10-05 | 1978-07-20 | Messerschmitt-Boelkow-Blohm Gmbh, 8000 Muenchen | Fine metal mesh structure with arched lattice bars |
| US4678699A (en) * | 1982-10-25 | 1987-07-07 | Allied Corporation | Stampable polymeric composite containing an EMI/RFI shielding layer |
| JPS60170303A (en) * | 1984-02-14 | 1985-09-03 | Mitsubishi Plastics Ind Ltd | Parabolic reflector |
| DE9001255U1 (en) * | 1990-02-03 | 1990-04-05 | Hagenbusch, Günther, 7313 Reichenbach | Satellite reception antenna |
| IT1255930B (en) * | 1992-10-28 | 1995-11-17 | REFLECTIVE PARABOLIC ANTENNA FOR THE RECEPTION OF ELECTROMAGNETIC WAVES AND RELATED PRODUCTION METHOD. | |
| FR2784804B1 (en) | 1998-10-16 | 2001-06-29 | Transformation Ind De Matieres | ANTENNA WITH WIRES COATED WITH A LAYER OF THERMOPLASTIC MATERIAL |
-
2000
- 2000-04-28 FR FR0005537A patent/FR2808382B1/en not_active Expired - Fee Related
-
2001
- 2001-04-27 DE DE60104302T patent/DE60104302T2/en not_active Expired - Fee Related
- 2001-04-27 EP EP01929735A patent/EP1279204B1/en not_active Expired - Lifetime
- 2001-04-27 WO PCT/FR2001/001302 patent/WO2001084671A1/en active IP Right Grant
- 2001-04-27 AU AU2001256430A patent/AU2001256430A1/en not_active Abandoned
- 2001-04-27 PT PT01929735T patent/PT1279204E/en unknown
- 2001-04-27 AT AT01929735T patent/ATE271264T1/en not_active IP Right Cessation
- 2001-04-27 ES ES01929735T patent/ES2223835T3/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| FR2808382B1 (en) | 2003-07-25 |
| DE60104302T2 (en) | 2005-06-09 |
| ATE271264T1 (en) | 2004-07-15 |
| AU2001256430A1 (en) | 2001-11-12 |
| DE60104302D1 (en) | 2004-08-19 |
| EP1279204A1 (en) | 2003-01-29 |
| PT1279204E (en) | 2004-11-30 |
| WO2001084671A1 (en) | 2001-11-08 |
| ES2223835T3 (en) | 2005-03-01 |
| FR2808382A1 (en) | 2001-11-02 |
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